/* ============================================================
   蜘蛛站群 SEO 系统 · ent_tpl_6 独立模板样式系统
   路径引用：/templates/ent_tpl_6/static/css/style.css
   设计风格：Tech Blue Industrial
   ============================================================ */

/* --- 1. 设计系统变量 --- */
:root {
  /* 色彩 */
  --color-primary: #16324f;
  --color-primary-mid: #21486e;
  --color-accent: #1fa2ff;
  --color-accent-dark: #157fca;
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-border: #e0e4ec;
  --color-text: #1a2332;
  --color-text-secondary: #5c6478;
  --color-text-muted: #8d94a6;

  /* 字体 */
  --font-display: 'Fraunces', 'Georgia', serif;
  --font-body: 'DM Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;

  /* 空间 */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* 过渡 */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: 0.25s var(--ease);

  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(26, 35, 50, 0.06), 0 1px 2px rgba(26, 35, 50, 0.04);
  --shadow-md: 0 4px 12px rgba(26, 35, 50, 0.08), 0 2px 4px rgba(26, 35, 50, 0.04);
  --shadow-lg: 0 12px 32px rgba(26, 35, 50, 0.12), 0 4px 8px rgba(26, 35, 50, 0.06);

  /* 容器 */
  --container: 1200px;
  --container-narrow: 860px;
}

/* --- 2. 重置 & 基线 --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea { font: inherit; }

/* --- 3. 排版 --- */
.display-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-primary);
}

.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* --- 4. 容器 & 布局 --- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.section { padding: var(--sp-20) 0; }
.section--sm { padding: var(--sp-12) 0; }
.section--dark {
  background: var(--color-primary);
  color: #fff;
}

/* --- 5. 网格 --- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* --- 6. 顶部导航 --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  height: 68px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-icon svg { width: 20px; height: 20px; fill: var(--color-accent); }

.logo-text {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.logo-tagline {
  font-size: 11px;
  color: var(--color-text-muted);
  line-height: 1;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  margin-left: auto;
}

.header-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.header-nav a:hover,
.header-nav a.active {
  color: var(--color-primary);
  background: rgba(212, 168, 83, 0.1);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-left: var(--sp-4);
  padding-left: var(--sp-4);
  border-left: 1px solid var(--color-border);
}

.header-phone {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}

/* 汉堡菜单 */
.menu-toggle { display: none; }
@media (max-width: 900px) {
  .header-nav { display: none; }
  .header-cta .header-phone { display: none; }
  .menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--sp-2);
    margin-left: auto;
  }
  .menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: var(--transition);
  }
}

/* 移动导航 */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-surface);
  z-index: 200;
  flex-direction: column;
  padding: var(--sp-6);
}
.mobile-nav.open { display: flex; }
.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--sp-6);
}
.mobile-nav a {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-text);
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--color-border);
  display: block;
}
.mobile-nav a:last-child { border-bottom: none; }

/* --- 7. 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
  line-height: 1;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(212, 168, 83, 0.3);
}

.btn-outline {
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn-ghost {
  color: var(--color-text-secondary);
}
.btn-ghost:hover { color: var(--color-primary); background: rgba(26,35,50,0.04); }

.btn-white {
  background: #fff;
  color: var(--color-primary);
}
.btn-white:hover {
  background: var(--color-bg);
  transform: translateY(-1px);
}

/* --- 8. 卡片 --- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-image {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-border);
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease);
}

.card:hover .card-image img { transform: scale(1.04); }

.card-body { padding: var(--sp-5); }

.card-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: var(--sp-3);
}

.card-excerpt {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--color-border);
}

/* --- 9. Hero 区块 --- */
.hero {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  background: var(--color-primary);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-mid) 100%);
}

.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image:
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 40px,
      rgba(255,255,255,0.3) 40px,
      rgba(255,255,255,0.3) 41px
    );
}

.hero-accent-line {
  position: absolute;
  right: -80px;
  top: -80px;
  width: 500px;
  height: 500px;
  border: 1px solid rgba(212, 168, 83, 0.15);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  padding: var(--sp-20) 0;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-5);
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-accent);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: var(--sp-6);
}

.hero-title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255,255,255,0.65);
  margin-bottom: var(--sp-8);
  max-width: 540px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.hero-stat-row {
  display: flex;
  gap: var(--sp-10);
  margin-top: var(--sp-12);
  padding-top: var(--sp-8);
  border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.hero-stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-top: var(--sp-1);
}

/* --- 10. 分隔装饰 --- */
.section-header {
  margin-bottom: var(--sp-12);
}

.section-header--center {
  text-align: center;
}

.section-header--center .section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--color-accent);
  margin: var(--sp-4) auto 0;
  border-radius: 2px;
}

.section-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin-top: var(--sp-4);
}

.section-header--center .section-desc {
  margin: var(--sp-4) auto 0;
}

/* --- 11. 关于/特色 --- */
.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(212, 168, 83, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--sp-4);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  fill: var(--color-accent);
}

.feature-card-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--sp-3);
}

.feature-card-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- 12. 标签导航 (列表页) --- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex-wrap: wrap;
  margin-bottom: var(--sp-8);
}

.filter-tag {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: var(--sp-2) var(--sp-4);
  border-radius: 100px;
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  transition: var(--transition);
  cursor: pointer;
}

.filter-tag.active,
.filter-tag:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  background: rgba(212, 168, 83, 0.06);
}

/* --- 13. 列表项 --- */
.list-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--sp-6);
  padding: var(--sp-6) 0;
  border-bottom: 1px solid var(--color-border);
}

.list-item:last-child { border-bottom: none; }

.list-thumb {
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-border);
}

.list-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease);
}

.list-item:hover .list-thumb img { transform: scale(1.05); }

.list-info-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: var(--sp-3);
}

.list-info-title a:hover { color: var(--color-accent-dark); }

.list-info-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--sp-4);
}

.list-info-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  font-size: 13px;
  color: var(--color-text-muted);
}

@media (max-width: 640px) {
  .list-item { grid-template-columns: 1fr; }
  .list-thumb { aspect-ratio: 16/9; }
}

/* --- 14. 面包屑 --- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 13px;
  color: var(--color-text-muted);
  padding: var(--sp-4) 0;
}

.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-accent-dark); }
.breadcrumb-sep { color: var(--color-border); }

/* --- 15. 页面标题栏 --- */
.page-hero {
  background: var(--color-primary);
  padding: var(--sp-12) 0;
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  right: -100px;
  top: -100px;
  width: 400px;
  height: 400px;
  border: 1px solid rgba(212, 168, 83, 0.1);
  border-radius: 50%;
}

.page-hero-inner { position: relative; z-index: 1; }

.page-hero-eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--sp-3);
}

.page-hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page-hero-sub {
  font-size: 15px;
  color: rgba(255,255,255,0.5);
  margin-top: var(--sp-3);
  max-width: 560px;
}

/* --- 16. 详情页 --- */
.article-detail-container {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: var(--sp-12) var(--sp-6);
}

.article-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-5);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  font-size: 13px;
  color: var(--color-text-muted);
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--sp-8);
}

.article-body {
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text);
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: var(--sp-10) 0 var(--sp-4);
  padding-top: var(--sp-4);
}

.article-body h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: var(--sp-6) 0 var(--sp-3);
}

.article-body p { margin-bottom: var(--sp-5); }

.article-body img {
  border-radius: var(--radius-md);
  margin: var(--sp-6) 0;
  box-shadow: var(--shadow-md);
}

.article-body ul,
.article-body ol {
  margin: var(--sp-4) 0 var(--sp-5) var(--sp-6);
}

.article-body li {
  list-style: disc;
  margin-bottom: var(--sp-2);
}

.article-body a {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* --- 17. 联系页 --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
  align-items: start;
}

.contact-info-block {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--sp-8);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
  padding: var(--sp-5) 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-info-item:last-child { border-bottom: none; }

.contact-info-icon {
  width: 40px;
  height: 40px;
  background: rgba(212, 168, 83, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-icon svg { width: 18px; height: 18px; fill: var(--color-accent); }

.contact-info-label {
  font-size: 12px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--sp-1);
}

.contact-info-value {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
}

.contact-form-block {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: var(--sp-8);
}

.form-group { margin-bottom: var(--sp-5); }

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--sp-2);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  transition: var(--transition);
  outline: none;
  font-size: 15px;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
  background: var(--color-surface);
  box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.12);
}

.form-textarea { min-height: 120px; resize: vertical; }

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* --- 18. Footer --- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.6);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-8);
  padding: var(--sp-12) 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--sp-3);
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: var(--sp-5);
}

.footer-col-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--sp-5);
}

.footer-col ul li { margin-bottom: var(--sp-3); }
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--color-accent); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) 0;
  font-size: 13px;
}

.footer-bottom-links {
  display: flex;
  gap: var(--sp-6);
}

.footer-bottom-links a {
  color: rgba(255,255,255,0.4);
  transition: var(--transition);
}

.footer-bottom-links a:hover { color: var(--color-accent); }

/* 友链 */
.seo-footer-links {
  background: rgba(0,0,0,0.2);
  padding: var(--sp-6) 0;
}

.seo-footer-links h4 {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.35);
  margin-bottom: var(--sp-4);
}

.seo-footer-links ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-6);
}

.seo-footer-links ul li a {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  transition: var(--transition);
}

.seo-footer-links ul li a:hover { color: var(--color-accent); }

@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--sp-3); text-align: center; }
}

/* --- 19. 分页 --- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  margin-top: var(--sp-12);
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  transition: var(--transition);
}

.pagination a:hover,
.pagination a.active {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  background: rgba(212,168,83,0.06);
}

/* --- 20. 空状态 --- */
.empty-state {
  text-align: center;
  padding: var(--sp-16) var(--sp-6);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  background: var(--color-border);
  border-radius: 50%;
  margin: 0 auto var(--sp-5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state-icon svg { width: 28px; height: 28px; fill: var(--color-text-muted); }

.empty-state-text {
  font-size: 16px;
  color: var(--color-text-muted);
}

/* --- 21. 内链卡片（详情页） --- */
.related-section {
  border-top: 1px solid var(--color-border);
  padding-top: var(--sp-12);
  margin-top: var(--sp-12);
}

/* --- 22. 辅助 --- */
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }

.mt-4 { margin-top: var(--sp-4); }
.mt-6 { margin-top: var(--sp-6); }
.mt-8 { margin-top: var(--sp-8); }
.mt-12 { margin-top: var(--sp-12); }

.mb-4 { margin-bottom: var(--sp-4); }
.mb-6 { margin-bottom: var(--sp-6); }
.mb-8 { margin-bottom: var(--sp-8); }

/* 滚动条 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); }

/* 选中 */
::selection { background: rgba(212, 168, 83, 0.2); color: var(--color-primary); }

/* 焦点 */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}